1.The test is very simple – just a finger prick blood sample can tell doctors which children are most at risk.
at risk有危險
The crisis could well place the relationship at risk.
這場危機可能會使這一關系有破裂的危險 。
2.The more we learn about heart disease and stroke in adults, the more we know that the process begins in childhood and progresses over time.
over time隨著時間的過去
The social significance of religion has changed over time.
宗教的社會意義隨著時間的變遷已經發生了變化 。